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Digital Negative (DNG) is an open, lossless raw image format developed by Adobe and used for digital photography.It was launched on September 27, 2004. [1] The launch was accompanied by the first version of the DNG specification, [2] plus various products, including a free-of-charge DNG converter utility.
Live histograms and highlight-clipping indicators, which are almost always based on the processed JPEG rather than on the raw data, might indicate highlights are blown when in fact they are not and could be recoverable from a raw file. Therefore, it can be difficult to expose properly to the right without risking inadvertently blown highlights. [7]
The raw file (left) before highlight and shadow details were recovered using the levels tool (right) When a camera saves a raw file it defers most of this processing; typically the only processing performed is the removal of defective pixels (the DNG specification requires that defective pixels be removed before creating the file [36]).
The filesystem in a digital camera contains a DCIM (digital camera images) directory, which can contain multiple subdirectories with names such as "123ABCDE" that consist of a unique directory number (in the range 100…999) and five alphanumeric characters (or any valid filename characters), which may be freely chosen and often refer to a camera maker.
The Nokia N900 mobile phone has an add on app "Fcam", which allows capture and saving of RAW files in Adobe's DNG format (along with other advanced features usually found in DSLRs). In 2013, Nokia launched Nokia Lumia 1520 and Nokia Lumia 1020 smartphones with DNG RAW format.
Adobe Systems has released the DNG format, a royalty-free raw image format used by at least 10 camera manufacturers. Raw files initially had to be processed in specialized image editing programs, but over time many mainstream editing programs, such as Google's Picasa, have added support for raw images. Rendering to standard images from raw ...
In digital photography, the Camera Image File Format (CIFF) file format is a raw image format designed by Canon, and also used as a container format to store metadata in APP0 of JPEG images. [1] Its specification was released on February 12, 1997.
ORF files have to be copied to a PC's hard disk, and then one can resort to an extensive array of adjustments. The format allows users to achieve maximum precision by setting their own white balance and saturation values, which is not feasible in JPEG or TIFF. This approach is used by experienced professional and devoted amateur photographers.